Problem
Given an unsorted array, find and remove all duplicates without using extra memory, or explain the trade-offs of sorting versus using a hash set.
Practicing as: Software Engineer interview at QuantcastHi, I'll play your Quantcast interviewer for the Software Engineer role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.
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